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Mercedes-Benz GLC vs Renault Austral

Mercedes-Benz GLC

Mercedes-Benz GLC

Mercedes' mid-size SUV on the MRA platform.

VS
Renault Austral

Renault Austral

Renault’s modern compact SUV.

First car
Second car
Pick this one if…

Mercedes-Benz GLC

Pick the GLC for space, comfort and efficient engines in a premium mid-size SUV.

Best engine: The GLC 220 d (diesel) or GLC 250 (petrol) — the sweet spot.
Read the full guide
Pick this one if…

Renault Austral

Pick the Austral for a modern compact SUV with an efficient E-Tech hybrid.

Best engine: The 1.3 TCe (petrol) or E-Tech Full Hybrid 200.
Read the full guide

Performance

M274 GLC 250 · Petrol vs 1.2 E-Tech 200 · Hybrid

Mercedes-Benz GLC Renault Austral
Power
211 hp Winner
200 hp
Torque
350 Nm
—
0–100 km/h
7,3 s Winner
8,4 s
Top speed
222 km/h Winner
175 km/h
Power-to-weight
121,6 hp/t
128,2 hp/t Winner
CO₂ emissions (WLTP)
152 g/km
108 g/km Winner
Consumption (WLTP)
6,5 L/100km
4,7 L/100km Winner

Dimensions & space

Mercedes-Benz GLC Renault Austral
Boot
550 L Winner
430 L
Boot (seats folded)
1.600 L Winner
1.525 L
Wheelbase
2,87 m Winner
2,67 m
Length
4,66 m
4,51 m
Width
1,89 m
1,83 m
Height
1,64 m
1,62 m
Seats
5
5

Powertrain & tech

Mercedes-Benz GLC Renault Austral
Platform MRA (rear-wheel-drive base, shared with the C-Class W205) CMF-CD3
Drive Rear-wheel drive · All-wheel drive Front-wheel drive
Engine family M274/M264 petrol · OM651/OM654 diesel · plug-in hybrid 1.2 TCe · 1.3 TCe · E-Tech Full Hybrid 200
Fuel Petrol · Diesel · Plug-in hybrid Petrol · Hybrid
Transmission 9G-TRONIC automatic 6-speed manual · EDC7 · E-Tech automatic
Euro standard Euro 6 (early) · Euro 6d (later) Euro 6d
LEZ access Euro 6 diesel allowed in the LEZ (Brussels/Antwerp/Ghent) Euro 6d allowed in the LEZ

Reliability & watch-outs

Known issues

Mercedes-Benz GLC
  • Early OM651 diesel: timing chain and AdBlue/NOx watch-points
  • 9G-TRONIC: fluid changes recommended earlier than official intervals
  • AIRMATIC air suspension can leak at high mileage
  • COMAND/MBUX software glitches (mostly fixed via updates)
Renault Austral
  • Infotainment software needs updates
  • Electrical gremlins on early cars
  • E-Tech hybrid: 12V battery drain

Pros

Mercedes-Benz GLC
  • 550 L boot growing to ~1,600 L — roomy for a mid-size SUV
  • Efficient OM654 2.0 diesel (GLC 220 d: 194 hp / 400 Nm)
  • MRA rear-wheel-drive platform with optional 4MATIC
  • GLC 350 e PHEV: 320 hp system output and 560 Nm, company-car friendly
Renault Austral
  • Modern interior with a big screen
  • Efficient E-Tech Full Hybrid 200
  • Roomy, modular boot (430–527 L)

Cons

Mercedes-Benz GLC
  • OM651/OM654 diesel: AdBlue/DPF watch-points with lots of short trips
  • PHEV (GLC 350 e) shrinks boot space (395 L)
  • Complex electronics and air suspension need dealer maintenance
Renault Austral
  • No diesel offered
  • Infotainment takes getting used to

Compare specific generations

Belgian taxes & LEZ

Region
Fuel
Euro norm
First registration
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—
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For sale at dealers